New to expressions and formulas? Try Expressions: The Essentials.
You can also learn more about other types of expressions.
When using expressions, some values depend on other values conditionally. Here are some examples of conditional statements:
If you oversleep, then you're late to work.
If you drink a lot of water, then you're hydrated, but if you don't, you're dehydrated.
In expressions, you can approach these conditional situations in a few ways:
IF(condition, then-expression, else-expression)
IFS(condition1, then-expression1, condition2, then-expression2, ...)to provide a sequence of condition-value pairs that are evaluated left-to-right until one of the conditions is true.
SWITCH(expression, value1, result1, value2, result2, ..., default_result)to choose one of the results based on the value of the expression
Expressions may be used in various AppSheet features--Initial Values, App Formulas, Virtual Columns and Column Constraints (Valid_If, Show_If, Required_If)--to customize app behavior and provide your users with advanced functionality.